Create new oslo.log release

We recently discovered a regression which makes services without
eventlet get stuck[1].

Create a new releases so that the fix is consumable in released
versions,

[1] https://bugs.launchpad.net/oslo.log/+bug/2039346

Change-Id: I1f6a3f080a56166688f4efbfda0a34eae8305262

deliverables/bobcat/oslo.log.yaml

@@ -11,6 +11,10 @@ releases:
     projects:
       - repo: openstack/oslo.log
         hash: 82a59af4360f7918c3427ad9d183dffb43cff541
+  - version: 5.3.1
+    projects:
+      - repo: openstack/oslo.log
+        hash: 287e138adf66c28b7c127dce99a8af05df00225e
 branches:
   - name: stable/2023.2
     location: 5.3.0

deliverables/caracal/oslo.log.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/oslo.log
         hash: a892465f1947b952c7d0db468b09a9dc7e8f40bc
+  - version: 5.5.1
+    projects:
+      - repo: openstack/oslo.log
+        hash: a6c4f8a9c62ae264f819716177f3da899eaf1a54
 branches:
   - name: stable/2024.1
     location: 5.5.0